1 TECHNICAL DESCRIPTION: - Offshore-Crane.Com

Document: Technical specification Doc. No: TS.HMC.2806.053 Revision: 03 Page: 2 of 16 OFFSHORE KNUCKLE JIB CRANE TYPE: HYDRAMARINE HMC 2806 LKO 150-20 (300-10) AHC

H Y D R AMARINE

1 TECHNICAL DESCRIPTION: 1.1.1 General introduction:

The HMC 2806 LKO 150-20 (300-10) AHC Active Heave Compensated offshore/marine knuckle jib deck crane is designed for long time operation and stowing in a tough and corrosive offshore marine environment. The crane is designed with major structural and mechanical over capacity and redundancy for heavy offshore operation on open deck of offshore vessel and for safe stowing on open deck of such vessel. The crane is designed for efficient and accurate offshore/subsea load handling of general cargo at max. 20 meter working radius. The jib has a hydraulic knuckle jib with a length of approximately 8 meters giving the crane good operation capabilities under rough operation conditions (low pendulum height under lifting operations). The crane is delivered as a complete, fully painted, fully pre-assembled and load tested unit, adjusted and ready for installation onboard vessel in accordance with our procedures. The crane is delivered as a complete unit, ready for installation to vessel by welding of deck pedestal to ships structure. The crane is a complete, hydraulic operated, independent, self contained unit. The crane main winch is equipped with an active heave compensation system which makes it able to launch and retrieve loads at seabed, with practical no relative heave motion related to seabed. By means of this both safe landing and disconnection, and connection and lift off, can be performed under adverse weather conditions. The crane-system is operated from the fully equipped, fully insulated operator’s cabin on the rotating part of the crane itself. All selected equipment is chosen and installed to ensure the lowest possible emission of sound and for good access for service and repair. The crane is designed, manufactured and tested according to LRS (Lloyds Register of Shipping) as an Offshore crane.

1.1.2 REDUNDANCY: The crane has built in a full and partly redundancy in main systems. This to ensure full SWL lifting capability, however in some failure cases with reduced speed, if some failure situations occurs. If any fail occurs, the control system will immediate indicate type of failure and also describe effect on crane operation. (i.e: pump side A drop out due to input power failure, operation continue with 50% speed) Here is a description of the built in redundancy: Power system: The electrical power system (Electrical main power system including hydraulic pump system) has built in redundancy so any single component or single system failure, in this overall loop, will only reduce the full SWL speed capability with max 50% of normal rated speed. The hydraulic power pack is spliutted in two tank sections and each section can be manually insulated if one of the sections fails. The crane is delivered with one starter cabinet consisting of two separate starter sections, each providing start for 1 of the two fitted crane el.motors. Separate power supply in and out of unit. Control system: The control system has 100% redundancy capacity with dual set of all sensors for backup, and dual CCS (Crane Computer System) to maintain operation if one single component in one of the systems fails. The computers are equipped with UPS power supply. Winch system: Main winch: Failure in up to two of the drive motors on the main winch, will not effect the winch lifting capacity, only minor reduction in max speed. The brakes maximum holding capacity for main winch are dimensioned so that at least full dynamic load will max apply 50% of max holding force to them.


H Y D R AMARINE

Slew system: Failure in up to two of the drive motors on the slew system, will not effect the slewing capacity, only minor reduction in max slew speed. The brakes maximum holding capacity for slew are dimensioned so that at least full dynamic load will max apply 50% of max holding force to them. Luffing cylinder system: Failure in one of the luffing cylinders will result in remaining 60% SWL capacity Knuckle jib cylinder system: Failure in one of the two cylinders will result in remaining 60% SWL capacity Power supply slip ring: The power supply slip ring is equipped with double set of contract brushes to increase redundancy in unit.

1.2 Construction, main design: 1.2 Crane pedestal.

The crane pedestal is designed for welding to ships deck structure. The pedestal has a total height between low flange and slew ring flange of 3 meters. The pedestal contains the vertical mounted electric slip ring for transfer of all electric supply to the rotating part of the crane. The electric main motors with their hydraulic pumps and the oil tank are located in the above located rotating king. Access to crane cabin-platform is done by a ladder with safety frame fitted. A hatch is fitted in lower part of the pedestal for access inside crane pedestal. 1.2.1 Electric slip ring:

The center open electric slip ring transfer all electric power and other communication signals to the rotating part of the crane. The slip ring is enclosed and mounted in suspension inside the crane foundation, in centre, just below the slew bearing. The slip ring is stationary since its rotating part extends into the rotating part of the crane, through the crane centre. Cable tray for power supply cables are fitted inside the crane pedestal. Access ladder and platform for inspection of the slip ring is fitted inside the crane pedestal. A separate control power circuit is fitted to allow motor space heater and other cabin functions to be active even when main power supply to crane is switched off (main switchboard). The slip ring system is fitted with separate LAN section from pedestal termination to operators cabin.

1.3 Crane king structure: The rotating crane king is installed on top of the rotating slew bearing. The king acts as the main structural element between the pedestal and the jib system. Both jib luffing cylinders are connected to the lower part of the king while the inner jib is connected to the top of the king by spherical bearings. The king structure houses the hydraulic oil reservoir and general machine room where all control valves are fitted. Access to this machine room is ensured by a hinged door at cabin side. The maneuvering platform structure with the operators cabin is fitted at right hand side of the crane king. A set of fully integrated slew gears are fitted to the king, with its output pinions in conjunction with the inner geared slew bearing ring. Each slew gearbox has built in failsafe brakes and each are fitted with an axial piston motor of variable displacement. 1.3.1 Electric starters:

The electric power is supplied to the slip ring (Stationary side) from the vessel mounted electric motor starter cabinet mounted under deck, between the vessel distribution board and the crane. The power supply system is separated in two sections, each of 50% of total power for increased operational redundancy. The electric main motor is mounted inside the crane king, outside the oil reservoir. The electric motor are all equipped with a stillstand heating element which reduces its moisture level during long time transit. A separate electric motor is for operation of the cooling fan. Start method for the main motor are star/delta while the small motors are Direct.


H Y D R AMARINE

1.3.2 Hydraulic oil tank/hydraulic pumps:

The hydraulic oil tank of required capacity is integrated as part of the rotating crane king structure. The hydraulic main pump is of high pressure, low noise variable displacement type and is mounted on flexible dampeners inside the oil tank, to reduce the noise level to an absolute minimum. The tank is equipped with visual oil level indication glass, (visual from the outside of the king) breather filter, oil filling filter, and a drain valve for use when changing oil and cleaning of the oil tank. Access to tank is possible through inspection hatch in side of crane king. A CTC circulation filter system is fitted to tank for continous filtration of the oil.

1.3.3 Hydraulic Filter system In addition to the above described CTC offline filter system a well dimensioned oil return filter is installed in the system to remove any impurities from the hydraulic oil returning from the system to the tank. An oil/air cooler is fitted in the main circulation loop to ensure low oil temperature, even with continuously crane operation under warm conditions. The filters are equipped with visual contamination indicators and electric switch which is connected to the control system in the crane cabin.

1.3.4 Slewing gears / slew bearing:

The slew bearing is a heavy duty offshore/marine slew ring equipped with internal gearing for transfer of the slew torque from the output pinion of the slew gearbox. The slew gear system consists of several hydraulic driven planetary gears with built in fail-safe dynamic multidisc brakes. The brakes are dimensioned to take the full load at the maximum list, plus any additional dynamic force acting on the slew gears. In the case of hose or pipe failure, the brake blocks the slewing immediately. A heavy duty hydraulic motor is flanged onto each gearbox. The slew motor, which is controlled by the main control valve, and the counter balance valve in the loop, gives smooth and accurate slewing of the crane.

1.3.5 Operators cabin:

The crane is equipped with a well dimensioned operator’s cabin representing a comfortable work place for the crane operator. The cabin is located on right (optionally left) side of the crane king. The cabin is bolted to a stabile steel foundation, welded to the crane king structure. A protective steel structure is surrounding the cabin to protect this against damage if other elements hit the cabin area. The operator’s cabin is equipped with an ergonomic and dampened main operator chair with all main operation handles of joy stick type located in armrests at side of the operator. Main handles are of spring centered type, winch and knuckle jib on right hand side, main jib operation and slew at left hand side. The cabin is equipped with 2 speed windows wipers, signal horn, internal light, def mister / heating system and houses the main cabinet for the crane control system. The cabin is fully thermal and noise insulated according to relevant standards Operators cabin are equipped with hardened safety glass. A LCD screen based control system gives the crane operator all required information for both crane system status and operation. The main control system for the crane is electronic and if a crane motion shall be stopped due to action from the crane control system, the control signal is cut-off. The cabin is equipped with a catwalk outside to give access for cleaning of the windows. A stereo radio/CD player is fitted. Max noise level in operators cabin during crane operation is 70 db.

Communication system and video signals to crane: (Extra capacity) The crane power/signal transfer system has available 20 off extra sections for connection of vessels intercom system. (Vingtor system or similar) or ROV monitors.


H Y D R AMARINE

1.4.1 Hydraulic winch system:

Winch unit: The main winch consists of a steel drum with a flanged on gear-ring, one each side of the winch, where 4 drive gears each driven by a variable displacement hydraulic motor, are fitted. The gear boxes are all fitted with a fail-safe multidisc brakes. The brakes are dimensioned to take the full load plus any additional dynamic forces acting on the winch. In the case of a hose or pipe failure, the brakes block the load immediately. The winch is equipped with a DYFORM type (Compacted) galvanized, none. Rotating, high quality sub sea wire rope and a counterweight/swivel/hook block of required capacity. The winch system is equipped with an electronic hook stop system. Line load monitoring is possible through a load cell fitted in one of the wire sheaves at the crane. The winch is designed to house 1500 m wire and crane will be delivered with 1550 m wire. The SWL is 30 tons single line on outer lay with 1500 m wire on drum. (Up to 5000 m hook travel available as option)

Active heave compensation: The main winch system is equipped with an active heave compensation system including constant tension system which can be used to land and retrieve loads to/from the seabed. The AHC system is fully operated from the crane control system fitted in the operator’s cabin. The system MRU give input of vessel heave, pitch and roll motion and the crane computer calculate the resulting crane tip motion based on the input signals. Then the winch drum will be operated to compensate for the jib tip resulting heave motion. The computer system has built in functions for semi-automatic landing and retrieval of loads to/from seabed. Through splash zone mode: The computer also includes a force controlled / active heave compensation “Through Splash Zone” compensation mode with intention to reduce crane loading when load pass through the splash zone. Wire lubricator: (Option) A system lubricating the wire rope with a bio oil type, to protect it against corrosion when stored on the winch drum, is part of the crane system.

1.5 Crane jib system: The crane jib consists of one hydraulic operated luffing main jib section and hydraulic operated Knuckle jib section. Both jib elements are built of plate elements, steel profiles and hollow sections. The inner main jib is connected to the king structure by two main bearings in at top of the king and to the rod bearing of the cylinder in the lower end. The knuckle jib section is supported, to main jib outer end, by two bearings in the inner end and the hydraulic cylinder in the lower end. The knuckle jib is hydraulic operated by a heavy duty cylinder especially made for knuckle jib operation. The main jib section are also hydraulic operated by one double acting, heavy duty marine cylinder with integrated counter balance valves. All cylinders are connected to the jib system with spherical bearings. A set of wire sheave brackets, for transfer of lifting wire rope, and cable, from inner mounted winches to outer end of the knuckle jib, is installed in the outer end of the main and knuckle jib section. A jib rest tower, for installation in suitable area, is not included in the delivery scope, but normally part of the yard scope. This tower must be made to fit the outer jib section and to secure the crane during transit conditions. 1.5.1 Jib Luffing cylinders: (Main jib and knuckle jib cylinders)

The crane is equipped with two high quality luffing cylinder and two knuckle jib cylinders, built especially for use in the marine environment. The cylinder piston rod is chrome plated to first class marine quality in order to obtain improved protection against corrosion. The part of the cylinder rod parked inside the cylinder seal ring when cylinder is parked, is made in stainless steel material, for optimal resistance against corrotion. A load holding valve is mounted direct to the cylinder to maintain a constant luffing speed independent of hook load and to block the jib in case of a hose/pipe failure.


H Y D R AMARINE

1.6 Hydraulic system:

The crane king houses the oil reservoir for the hydraulic oil and the hydraulic main pump is mounted on rubber flanges, outside the tank, for low noise operation. The hydraulic pumps are of low noise fixed displacement type operating in CF mode. The pump are driven by the main electric motor and are feeding hydraulic oil into a common control valve system distributing the power to the actual crane motion, based on signals from the control system. Hand operated electronic joy sticks type are installed at the operators panel at the maneuvering platform. The control valve is electro servo-hydraulic operated from control panel. The main control valve divides oil out to each actual crane motion dependent of servo pilot lever position. When no lever is operated, the oil flow through the control valve, through filter and cooler back to tank. As soon as one lever is operated, a Stepless variable oil flow is directed out to the actual crane motion, giving the motion the required speed. The hydraulic system ensures full flow through the filters and this ensures full filtration and cooling capacity, even when crane is operated at creep speed for a long time. One large oil/air cooler is fitted in aft part of the crane king. The oil tank is equipped with a thermostat controlled oil heater to ensure operation capability under cold conditions. As a result of the pressure compensated control valve system, each crane motion may be operated simultaneously and the control performance is not dependent of variations in actual crane load. Both hydraulic oil level, hydraulic oil temperature, filter status and operation pressures are all general data available on the control panel in the operators cabin. Any abnormal values will result in visual/audible alarm in the crane cabin.

1.7 Control System: The basic crane control is electronic and joy sticks are integrated into operators chair in the crane cabin. All safety functions are cutting off the control signal for the decided motion, upon signals from the crane control system. The control system is made with an easy to access graphic user interface, where separate pages are accessible on the 17” high definition (170 degrees view angle type) main monitors. The system is so separate status, alarm and operation pages can be monitored and give the crane operator full system information any time during crane operation or during maintenance etc. All main parameters will be historically logged to be used as documentation for any normal or abnormal operation. The control system cabinet is mounted inside the crane king and is based on an industry standard PLC system. The control system has two large 17” LCD with 170 degrees view angle screen for control and monitoring of all crane functions. The LCD panel is illuminated to ensure excellent reading under all conditions. Load information is shown as analogue bar charts in the graphic display while pay-out lengths and sensor information are shown as digital information. The control system receives information from the following field sensors, all of heavy duty marine type: x Knuckle jib position x Main jib position x Main winch position x Load cell in main wire x Hydraulic oil temperature x Hydraulic oil level x Filter DPI sensors x Contamination sensor (Hydac sensor) in return line x MRU (Motion Reference Unit) x Power Management System (PMS) for entire crane system x Video cameras on winch and jib end Start/stop of main pumps and circulation system, is also done from the operators cabin. The start of main motors is STAR/DELTA with dedicated sequence, controlled by Crane Control System, to reduce start current as much as possible.


H Y D R AMARINE

AHC performance is expressed and displayed on the LCD screen, when this mode is active. Both real AHC speed and position will be displayed continuously.

The computer system may be equipped with full Satellite based remote diagnostic system allowing full access to crane computer system from remote location. (Within satellite coverage) (Option) A slave monitor for vessel bridge installation is included (For bridge info only) (Option) A high definition video camera fitted in a dampened suspension at outer part of jib, is included. Monitor in crane cabin is included. (Option)

1.8 Camera systems:

The crane is equipped with with two heavy duty cameras, each linked up to a separate flat screen monitor located inside crane cabin. One camera is suspended in a hinged and dampened link in the outer end of the knuckle jib, looking down to observe the hook/load area. The other camera is fixed mounted on winch to observe the wire spooling.

1.9 Wire fatigue log system:

The control system are logging wire fatigue data as a readable data file. The logging is per meter rope and is based on meter, load and number of sheave bendings. Data file can be submitted to wire expert for evaluation.

2.0 SAFETY SYSTEMS: The crane is fitted with the following safety systems:

Redundant crane power system: Crane power pack is separated in two main groups, each capable of lifting full SWL at 50% of max speed. Failure in one component in one of the systems will in worst case only reduce speed with max 50%.

Emergency stop: Emergency stop are fitted at the cabin. If this button is activated, the main pumps will be stopped. Spring centered control valves: All control levers, separate and joy stick type, are spring centered. In order to operate the crane the

relevant control lever has to be pushed in the required direction to cause the desired motion. Once the lever is released it will return back to centre position, and the activated motion will cease immediately. Overload protection: All crane motions are protected against overload by the control system primarily and then, as a second protection by hydraulic relief valves. If a particular motion is tried undertaken which exceeds the load for which the crane is designed, the relevant relief valve, for the particular motion, will feed the hydraulic oil back into the hydraulic oil tank. Hence, the crane motion can not be undertaken. Overload protection, automatic and manual: (MOPS, AOPS) The main winch is equipped with both automatic and manual overload protection system. Crane overload limiting system: The crane control system has all information about working radius and working conditions. Based on this, the system will indicate on the graphic display, how much load that can be handled safely and also show the actual static and dynamic load. If the operator tries to exceed the limits programmed in the system, the crane motion will stop and the operator will be corrected by the graphic display.

Hook stop system: The winch systems are both fitted with an electronic hook stop system. This system is based on a tachometer on the winch giving signals to the crane control system stopping the winch in upper and lower position.


H Y D R AMARINE

Luffing cylinder limitation: The hydraulic cylinders for luffing of the crane jib are fitted with a mechanical stroke limitation. End stop/retardation of all cylinders are normally controlled by the control system Load holding brakes: The hydraulic cylinders for luffing of the crane jib sections is fitted with pilot operated load holding valves. The valves are mounted direct to the cylinder ports and have a dual function: 1 Maintaining the luffing speed at a constant value independent of the load 2 Blocking the cylinder motion in the case of hydraulic pressure loss. This will freeze the

cylinder in the case of hose or pipe failure. Fail safe brakes: Both the winch and the slew gearboxes are fitted with hydraulic operated, oil submerged, failsafe, and multidisc brakes. In the case of hydraulic pressure loss due to hose/pipe failure, the brake will be automatically applied and cease the relevant motion. Helicopter warning light: The top of the inner jib and the aft winch skid are fitted with a red helicopter warning light to indicate crane during dark working conditions. Light are of Dual bulb type. Emergency operation possibility, without control system intact: Since this is a subsea / diving assisting crane, reliability and redundancy is a major aspect of all systems integrated. The primary control system is servo hydraulic, which is extremely reliable. The control system is then controlling the servo pressure and cutting this off if a crane motion shall stop due to actions from the control system. If the entire PLC control systems fail, a switch is installed to be able to activate valves related to normal crane functions all solenoids, to still be able to operate crane. In this mode a separate direct operated control panel, normally stored inside crane king, must be used. Emergency operation possibility, without any main power: (If Manriding option is declared) The crane power pack is equipped with a small separate emergency pump (20kW) able to run on the emergency generator onboard the vessel. This pump will ensure slow crane operation, even with full load, if both main supply lines fail.

Camera systems: The crane is equipped with with two heavy duty cameras, each linked up to a separate flat screen monitor located inside crane cabin. A safety device with respect to operator information.

Wire fatigue log system:

The control system are logging wire fatigue data as a readable data file. Data file can be submitted to wire expert for evaluation.

3.0 SPECIAL TOOLS: A Pressure test instruments:

A set of pressure test manometers is delivered ready for connection to the many pressure test takeoffs installed in the system.

B Bolt tensioning system: Slew ring bolt tensioning equipment is optional or may be rented from Hydramarine.


H Y D R AMARINE

4.0 TECHNICAL SPECIFICATION: 2.1 Design codes:

Lloyds “Rules for Certification of Lifting Appliances” 2002 as Offshore Crane

Relevant Standards: Federation Europeenne de la Manutention (FEM). “Rules for the design of Hoisting Appliances” (Edition 1998). Quality System Standard NS-EN ISO 9001, 1994 certified by DNV. Electrical Classification to IEC/CENELEC (specific norms). IEC standards 92-3/332-3/331 to be complied with Vibration to be within requirements of ISO 10816-3 level A Welding to comply with AWS D1.1 Gear design in accordance to DIN 3990 and 3961 level 5 Gear minimum contact area to be min 85%

2.2 Certificates: Certification in accordance with LRS, Chapter 3

Design review. Production supervision. Test attendance at workshop Onboard test attendance 2.3 Operating conditions:

Ambient temperature: -20 to + 55 degrees C Humidity: 0-100%

2.4 Main performance data:

Main Crane data HYDRAMARINE OFFSHORE KNUCKLE JIB CRANE Type: HMC 2806 LKO 150-20 (300-10) AHC Category of lift

Lifting data: Dynamic data Comments

Hook load SWL (1)

Max working radius

Crane load (2)

Wave height (3)

Dynamic factor (4)

Duty factor

List + trim

Offlead and sidelead

Wind speed

Ton Meter Ton Hs (m) Degrees Degrees m/s

15 20 16 30 10 31

Internal on deck (Harbour)

N/A 2,0 1,05 8 0 20

15 20 16 Up to 500m depth

External deck/sea incl. sub-sea lift 30 10 33,5

2,0 1,2 5+2 2+5 20

At 1500 m depth

10 20 16,5 At 1500 m depth

External deck/sea (AHC lift) (6)

30 10 33,5

2,0 1,2

5+2

2+5

20

At 1500 m depth

Ship to ship lift at sea (5)

15 30

20 10

16 31

2,0 1,2 5+2 2+5 20

Notes to table figures; 1 SWL is weight of object in AIR 2 Crane load = SWL + hook weight + wire weight – buoyancy of same (SWL buoyancy = solid steel bar) 3 Vessel dependant (Will be calculated later) 4 Design dynamic factor 5 Derating table for ship to ship lifts will be available 6 The buoyancy of the hook load is set to a solid steel bar (conservative)


H Y D R AMARINE

Winch speed table:

Hook load SWL Wire falls Hook travel Hoisting speed Winch Ton No Meter SWL Reduced load

m/min m/min MAIN WINCH

15 30

1 1

1500 1500

0-120 0-60

0-120 0-60

Active Heave Compensation data (Main winch) (Active winch system) AHC load SWL, in air

Sub-Sea load, max. at sea bed

Heave Period Heave velocity Acceleration req.

T

M Sec. M/min M/sec.2

AHC max deviation (mm deviation measured on subsea HOOK)

r4 12 0-125 1,1 +/- 150 mm r3 9 0-125 1,4 +/- 150 mm

30

NOTE! The speeds mentioned in this technical specification are based on average volumetric efficiencies provided by our suppliers of hydraulic components. A speed tolerance of +10 to -5% is within the accepted range and should be taken into consideration.

Other crane data: Main winch: Winch drum capacity: 1500 m OD 38 mm on max 10 layers Wire length included in delivery: 1550 m Main wire diameter: Ø 38 mm (Nominal ) Wire type: Non-rotating, galvanized, compacted (DYFORM) Wire tensile strength: 1960 N/mm^2 Drum grooving: Lebus system Number of drive gears: 4 Main wire sheaves D/d ratio: PCD = 26:1 Main winch drum D/d ratio: PCD = 26:1 on inner lay

Hydraulic system: Type of system: Load Sense System (Closed loop system) Main Pumps: Variable displacement axial piston pumps Circulation pumps: Gear and wane pumps Operation pressure: 275 bar nominal Hydr. fittings up to OD Ø38 mm pipes: “Walform”. DIN 2353. Body in yellow cromated steel Hydr.fittings above OD Ø38 mm pipes: Flange sys..SAE J518 and ISO6164 in yellow cromated steel Pipe materials, mounted outdoors: AISI 316, stainless steel

Description FEM 1.001 Lifting appliance Entire crane Appliance Group

A3

Class of utilization U2 Load Spectrum Class Q3 Machinery Type of

Mechanism

Main winch Aux. winch Luffing Slewing Mechanism Group M5 M5 M5 M3 Class of utilization T4 T5 T5 T3 Load Spectrum Class L2 L2 L2 L2 Structural Structural part Pedestal King Booms Mechanism Group E1 E1 E1 Class of utilization B1 B1 B1 Load Spectrum Class P3 P2 P2

FEM Design classification:


H Y D R AMARINE

Pipe materials, mounted indoors: OD up to OD Ø50 mm: AISI 316, stainless steel OD above OD Ø50 mm: Mild steel Hose connectors protection: All external hose fitting up to Ø38 mm: Stainless steel AISI 316 Hose fittings exceeding Ø38 and internal: Chromated type with DENSO tape protection Preferred interconnection method: Hard piping, Hoses only where it is required as result of

vibrations or relative motions. Contamination class prior to comm.: NAS class 6 (Unit flushing prior to test) Contamination class after comm.: NAS class 7

Hydraulic luffing/knuckle jib cylinders: Number of main jib cylinders: 2 Number of knuckle jib cylinders: 2 Type of cylinders: Double acting marine type Bearings: Spherical bearings with sealing system Cylinder rod: 60/40 NiCr layer 60 micron hard chromed Cylinder rod seal box parked section: Stainless steel weld on section + NiCr as above Electric motors: Main motors, 2 x 385 kW, S1 rated: Motor make: Acc. to Makers List Motor size: 355 Voltage, main motor: 440V / 60Hz / 3ph Still stand heating elements: 230 V / 60Hz / 1 ph Power consumption, main motor: 385 kW (S1) Still stand heating, power: 2 x 40 W Full load current at S1 CD: 553 A Starting current, DOL start: 5198 A Starting current, Star / Delta start: 1727 A Protection class: IP 55 Insulation class: F Temperature rise class: F Motor cooling: Air cooled by motor fan Motor running speed: ~1780 RPM CJC circulation motors, 2 x 2,5 kW, S1 rated: Motor make: Acc. to Makers List Motor size: 100 Voltage, main motor: 440V / 60Hz / 3ph Still stand heating elements: 230 V / 60Hz / 1 ph Power consumption, main motor: 2,5 kW (S1) Still stand heating, power: 2 x 40 W Full load current at S1 CD: 4,4 A Starting current, DOL start: 27,7 A Protection class: IP 55 Insulation class: F Temperature rise class: F Motor cooling: Air cooled by motor fan Motor running speed: ~1780 RPM


H Y D R AMARINE

Hydraulic oil coolers fan motors, 2 x 2,5 kW, S1 rated: Motor make: Acc. to Makers List Motor size: 100 Voltage, main motor: 440V / 60Hz / 3ph Still stand heating elements: 230 V / 60Hz / 1 ph Power consumption, main motor: 2,5 kW (S1) Still stand heating, power: 2 x 40 W Full load current at S1 CD: 4,4 A Starting current, DOL start: 27,7 A Protection class: IP 55 Insulation class: F Temperature rise class: F Motor cooling: Air cooled by motor fan Motor running speed: ~1780 RPM Other data: Slewing Slewing range, limited 360 dgr continous Slewing speed 1,0 rpm Wire sheave bearings: Roller bearings with internal greasing

Simultainesly operation:

One of the winches + slew motion or jib motion, can be performed same time with full speed on both crane motions. When winch is operating at max AHC mode, the other crane motions can be performed with some reduced speed.

Lubrication systems: Totally closed gearboxes: Partly oil filled Cylinder and hinge bearings: Manual greasing by installed high pressure grease system Open gear / pinion drive gears: Norsekraft system

Power consumption:

POWER SECTION on HPU

No. Description Voltage (AC) Power kW

Comments

1 Main power, electric motor A 440 V / 60 Hz / 3ph

385 S1.

2 Main power, electric motor B 440 V / 60 Hz / 3ph

385 S1

3 Auxiliary power 440 V / 60 Hz

4 S1

4 Emergency recovery power (Taken from emergency generator) (option)

440V / 60 Hz / 3 ph

20 S1

5 Circulation pump A

440V / 60 Hz / 3ph 4 S1

6 CJC pump A/B

440V / 60 Hz / 3ph 2,5 S1

7 Oil cooler fan A/B

440V / 60 Hz / 3ph 2,5 S1

MAX TOTAL 440V/60Hz consumption at same time: 803 kW (Emergency mode with 20 kW included)

Weights: TOTAL CRANE WEIGHT 80 t


H Y D R AMARINE

Surface treatment: All external and internal open to external surfaces will be: Painted according to Hydramarine paint specification no: SP1764-60 Hempel paint systems Bolts: (quality and surface treatment) General quality: 8.8 and 10,9 (Except on standard components where 12.9 bolts are required) Bolt surface: Up to and inclusive M12 bolts: Stainless steel AISI 316 Above M12, 8.8 quality: Hot dip galvanized 10.9 and 12.9 bolts: Painted as structure (Can not be galvanized) Junction boxes: All external boxes: AISI 316 stainless steel Electrical component housings: All equipment and junction boxed located outside: Min IP 56 class All equipment and junction boxes located inside: Min IP 44 class Earth protection systems: Insulated two pol system included 24V earth failure monitor is included


H Y D R AMARINE

1 TECHNICAL DESCRIPTION: - Offshore-Crane.Com

Documents

Transcript of 1 TECHNICAL DESCRIPTION: - Offshore-Crane.Com